Sewer-pipe section.



F. H. WEAVER.

SEWER PIPE SECTION.

APPLICATION FILED OCT-E1914. RENEWED SEPT.22. l9l5 1,180,45Q.- 1 arentedApr.25,1916.

FREDERICK H. WEAVER, OF BALTIMORE, MARYLAND.

SEVVER-PIPE SECTION.

' Specification of Letters Patent.

Patented Apr. 25, me:

Application filed October 6, 1914, Serial No. 865,251. Renewed September 22, 1915. Serial no. 52,106.

To all whom it mag/concern Be it known that I, FREDERICK H. VVnAvnn, a citizen ofthe United States, residing at Baltimore, in the State of Maryland, have inventedcertain new and useful Improvements in Sewer-Pipe Sections, of which the following is a specification.

This invention relates to, improvements in reinforced concrete sewer pipe sections for use in constructing sewers, or otherconduits, and has for its object to provide a section so constructed that when two or more sections are joined together their inner and outer surfaces will be flush, and further to providea sealed reinforced joint between the sections when assembled' The invention consists of the novel construction and arrangement of the parts and of the reinforcing tie bars which project across the tions. 7

Referring to the accompanying drawings, forming part of this specification, and in which like reference numerals designate like parts throughout the several views thereof, 1 designates a pipe, or section, having a bell end 2 and a spigot end 3. The pipe, or section, is )rovided with reinforcing material 4 extem ing entirely around the body thereof from the shoulder 5 of the bell end to the outer end of the spigot end, and a short piece of reinforcing material 6 extending from the outer end of the bell end back beyond the shoulder 5. The bell end Q-is provided with two annular grooves-7 in the inner surface thereof, and a number of short reinforcing bars 9 with their ends bent over and secured to the reinforcing material 6 and project across both ,of 'said grooves in the ends of the sec grooves 7 below the inner surface of the bell end. The spigot end 3 is provided with two annular grooves 10 in the outer surface thereof whichlcoincide with the grooves 7 when. the sections are fitted together. The.

spigot end 3 is also provided with a num- Will be formed between the her of short reinforcing bars 9 which have their ends securedto the reinforcing mate rial r and project across both said" grooves 10 below the outer surface of said spigot end. lVhen the pipes, or sections, are fitted together a piece may be broken 0d the bell end large enough to permitvof the cement, concrete or other filling material being poured into the grooves 7 and 10 until the latter are filled, as well as the portion broken off the bell end, whereby said concrete, cement, or other material, will take around said bars 9 and a reinforced locked and sealed joint when assembled.

The bars 9 not only serve as alocking means when the joints are filled, but also serve to strengthen the said spigot and belly ends of said pipes or sections.

Having fully described my invention, what I claim is: I

l. A pipe, or section, having a bell end provided with two annular grooves in its inner surface, a number of bars projecting across said two annular grooves below the inner surface of said bell end,a spigot end having two annular grooves in its outer surpipes or sections face which coincide with the annular grooves in the bell end when the pipes,- or sections,

are fitted together, and a number ofshort.

bars projecting across said two annular grooves in the spigot end below the outer surface of said spigot end.

cured to said reinforcing material, and short bars extendingacross the grooves in the spigot end and secured to said reinforcing material.

3. A pipe, or section, having .-a bell end provided with two annular. grooves in its inner surface, a spigot end having two-am nular groovesin its outer surface adapted to coincide with the grooves in the hell and when the sections are fitted togetlor, a piece of reinforcing material extending around said pipe, or section, short bars extending across said grooves in the bell end below In testimony whereof I afiix my signature thomnor surfnr-o thereof and havmg their in presence of two witnesses.

ends secured to Said reinforcing material, FREDERICK H WEAVER and short bars ntending across the grooves 5 in the spigot and below the outer Slll'fflCL Witnesses:

thereof and having their outer ends scoured Crux-1x A. Fmonsox, to 5:116 rolnforomg material. MAUI): M. Amoss. 

